Aerial parts of Papaver pilosum Sibth. et Smith have furnished nine alkaloids, five aporphinoids, and four morphinans. Two of the morphinans are new alkaloids: (+)-amurinine (8) and (-)-epiamurinine (9); the structure of the third morphinan, (+)-dihydronudaurine (7a), is definitely assigned. © 1984, American Chemical Society. All rights reserved.